Thomas welham



@uiten gisten ittwt @fitte IMPROVEMENT IN. WATER-WHEELS.

ilge Srlgihnle refimh tu im time etter nteut mit making mi nf tlgi time.

To ALL WHoM IT MAY eoNcERN:

Beit known that I, THOMAS WLHAM, of the city of Philadelphia., State of Pennsylvania, have invented a new and useful Friction Tater-Wheel; and I do hereby declare the following to be an exact description thereof', reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part .of this specification, in which- Fgure 1 represents a perspective view of two wheels enclosed.

Figure 2, a view of the spiral anges attached to the inside ofthe casing or concave.

Figure 3, a sectional View of the two Wheels, as enclosed in the concave und spiral anges.

The nature of my inventionconsists in the construction of a friction water-wheel, enclosed in a concave, with spiral anges attached to the concave. .Theobject is to drive the wheel by the friction of the water, so that any number of wheels can be driven by the same water, and one or more wheels can atany time/be stopped Without stopping or retarding the operation or speedof any of the other wheels; and for this purpose I make anges A A in a spiral form attached permanently to the inside of the concave casing or water-tight cylinders 'B kB; the wheels C having a smooth periphery, or, if necessary, very short buckets or grooves on the periphery of each wheel, and the wheels C C operating in the centre of` the flanges A, so that the water is conducted around and forced over each wheel between the flanges A of the casing B, operating' a series of wheels, and conducted from cylinder to cylinder through the connecting-tube or channel D. E E are the feed and discharge pipes, as indicated by' the arrows, and G G the driving pulleys for transmitting power. H represents any kind oF a frame to suit the'location.

i What I claim as my invention, and desire -to secure by Letters Patent, is-

The friction water-wheel C, constructed as shown, and enclosed in a ense, as herein described.

I also claim the anges A of the water-tight casing B, said anges forming a passage entirely around the circumference of the wheel C, as herein shown and described.

THOS. WELHAM.

Witnesses:

EDM. F. BROWN,

J. FRANKLIN REIGART. 

